[NTG-context] space between last bodytext line and blackrule

Hi, in a layout with footnotes at the bottom of the page it happens sometime that the last bodytext line is moved to a new page although it *looks* as there would be enough space between the last bodytext line and the footnote's "blackrule". When printing the page and using the ruler you may find out that only 0.5mm is missing ... I know that there is a way to control the space between the blackrule and the first footnote's line: \def\MyRule {\blackrule[width=3cm,height=1mm] \vskip.5cm}% here this space is 0.5cm But how do I control the space between the *last bodytext line* and the blackrule?? Steffen